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Acquisitions - Narrative (Details) $ / shares in Units, $ in Thousands |  | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Feb. 26, 2021 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) | Sep. 30, 2021 $ / shares shares | Apr. 02, 2021 USD ($) | Mar. 10, 2021 USD ($) | Dec. 31, 2019 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |
Common stock, par value (USD per Share) | $ / shares |  | $ 0.001 |  | $ 0.001 |  |  |
Common stock outstanding post merger (in Shares) | shares | 17,800,000 | 19,836,885 |  | 19,672,050 |  |  |
Transaction costs |  | $ 1,258 | $ 1,049 |  |  |  |
Kansas Properties |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Consideration from discontinued operations |  |  |  |  |  | $ 3,500 |
Kansas Properties | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Consideration from discontinued operations |  |  |  |  | $ 3,500 |  |
Consideration from discontinued operations including closing adjustments |  |  |  |  | $ 200 |  |
Pro Forma |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Transaction costs |  |  |  |  |  |  | $ 900
Impairment of oil and gas properties |  |  | 900 |  |  |  |
Riley Exploration |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Total consideration | $ 26,392 |  |  |  |  |  |
Transaction costs |  |  | $ 1,000 |  |  |  |
Tengasco |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Common stock, par value (USD per Share) | $ / shares | $ 0.001 |  |  |  |  |  |
Stock conversion ratio | 97.796467 |  |  |  |  |  |
Reverse stock split | 0.083 |  |  |  |  |  |

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